package com.liangchao.shiro.controller;



import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class MyController {
    @RequestMapping({"/", "/index"})
    public String toIndex(Model model){
        model.addAttribute("msg", "hello, Shiro");
        return "index";
    }

    @RequestMapping("/user/add")
    public String add() {
        return "user/add";
    }
    @RequestMapping("/user/update")
    public String update() {
        return "user/update";
    }
    
    @RequestMapping("/toLogin")
    public String toLogin() {
        return "login";
    }


    @RequestMapping("/login")
    public String login(String username, String password, Model model) {
        // 获取当前的用户
        Subject subject = SecurityUtils.getSubject();
        // 封装用户的登录数据
        UsernamePasswordToken token = new UsernamePasswordToken(username, password);
        
        try {
            subject.login(token); // 执行登录的方法， 如果没有异常就 ok
            return "index";
        }catch(UnknownAccountException e) {
            model.addAttribute("msg", "用户名错误");
            return "login";
        }catch(IncorrectCredentialsException e) {
            model.addAttribute("msg", "密码错误");
            return "login";
        }
    }
}
